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NetBackup System Administrator’s Guide - Windows NT Server
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To find the volume that has the duplicate backup, use the Images on Media
report. Specify the backup ID which is known (and also the client name if
possible to reduce the search time). The report shows information about both
copies.
The
bpduplicate
command writes all of its output to the NetBackup logs and
nothing appears in the command window.
After changing the duplicate to be the primary copy, you can use the
NetBackup interface on the client to list and restore files from the backup. See
the NetBackup user’s guide for the client for instructions.
Notes on Multiplexed Duplication
• When duplicating multiplexed SQL-BackTrack backups with multiplex
mode enabled, it is necessary to duplicate all the backups in the
multiplexed group. This ensures that the fragment order and size is
maintained in the duplicate. Otherwise, it is possible that restores from the
duplicated backups will not work. A multiplexed group is a set of backups
that were multiplexed together during a single multiplexing session.
• When duplicating multiplexed backups, the multiplex settings of the
destination storage unit and the original schedule are ignored. However, if
multiple multiplexed groups are duplicated, the grouping within each
multiplexed group is maintained. This means that the duplicated groups
will have a multiplexing factor that is no greater than used during the
original backup.
• If all backups in a multiplexed group are duplicated to a storage unit that
has the same characteristics as the one where the backup was originally
performed, the duplicated group will be identical, with the following
exceptions:
• If EOM (end of media) is encountered on either the source or destination
media.
• If any of the fragments in the source backups are zero length (occurs if
many multiplexed backups start at the same time), then during
duplication these zero length fragments are removed.
This is important only for SQL-BackTrack backups.
NetBackup 3.2 System Administrator's Guide for Windows NT
NetBackup 3.2 System Administrator's Guide for Windows NT